CVE-2026-21259 Microsoft Excel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.


CVE-2026-21512 Azure DevOps Server Cross-Site Scripting Vulnerability

Server-side request forgery (ssrf) in Azure DevOps Server allows an authorized attacker to perform spoofing over a network.


CVE-2026-21261 Microsoft Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.


CVE-2026-21246 Windows Graphics Component Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.


CVE-2026-21242 Windows Subsystem for Linux Elevation of Privilege Vulnerability

Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.


CVE-2026-21249 Windows NTLM Spoofing Vulnerability

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing locally.


CVE-2023-2804 Red Hat, Inc. CVE-2023-2804: Heap Based Overflow libjpeg-turbo

A heap‑based buffer overflow exists in libjpeg‑turbo’s h2v2_merged_upsample_internal() function when processing 12‑bit lossless JPEG images. An attacker could craft an image containing out‑of‑range 12‑bit samples that, when decompressed with merged upsampling enabled, may trigger a segmentation fault or buffer overflow, resulting in an application crash.


CVE-2026-21243 Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability

Null pointer dereference in Windows LDAP – Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.


CVE-2026-21238 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.


CVE-2026-21256 GitHub Copilot and Visual Studio Remote Code Execution Vulnerability

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